TCPRTT Exporter is a toy that runs ip tcp_metrics command to collect tcp rtt value from host, can be used to monitor network latency jitter. Note that since TCP source/destination IP is exported as metrics label, it could meet high cardinality issue of prometheus.
# start monitoring and will export metrics to http://0.0.0.0:8090/metrics
./tcprtt_exporter# like command above, but will try to resolve ip address to pod/service name in kubernetes cluster
./tcprtt_exporter -kubeconfig $KUBECONFIG -resolve-kubernetes- example kubernetes deployment manifest
- option to collect rtt using eBPF, since data from
ip tcp_metricsis only updated when TCP connection is closed.